JP2013545260A - Focused solar induction module - Google Patents

Abstract

The focused solar light induction module includes a lens array plate and a light guide plate. The lens array plate includes at least one lens. Each lens that receives and focuses sunlight has an upper curved surface and a lower flat surface. The light guide plate has a lower flat surface of the lens array plate and an upper flat surface parallel to the lower microstructure surface. The lower microstructured surface comprises at least one concave region and at least one connection region parallel to the upper flat surface of the light guide plate. The connecting region is connected between adjacent concave regions having a concave point, a first inclined plane and a second inclined plane. The first inclined plane and the second inclined plane are respectively connected between the concave point and the adjacent connection region.
[Selection] Figure 1A

Description

  The present invention relates to a focused solar light induction module, and more particularly, to a focused solar light induction module including a microstructured light guide plate.

  With the rapid development of the industry, the issue of fossil fuel depletion and greenhouse gas emissions is increasingly concerned all over the world, and the stable supply of energy resources is clearly a major global issue It has become. Compared with conventional coal-fired power generation, gas-fired power generation, or nuclear power generation, solar cells convert solar energy directly into electrical energy by the photoelectric conversion or thermoelectric conversion effect, and carbon dioxide, nitrogen oxide, and sulfur oxidation Reduces dependence on fossil fuels and provides a safe and independent power source because it does not produce greenhouse gases or pollutant gases.

  In many solar cell technologies, solar radiation converted by the solar cell material has become a convenient power source for use. Taking a crystalline silicon solar cell as an example, a crystalline silicon solar cell has a photoelectric conversion efficiency of 12% to 20%, and a solar cell designed using different crystalline materials has different photoelectric characteristics. In general, since the conversion efficiency of a single crystal silicon or polycrystalline solar cell is about 14% or 16%, the lifetime is increased, but the power generation cost of the single crystal silicon or polycrystalline solar cell is high. Therefore, government subsidies are required and this type of solar cell can only be applied to power plant or traffic light signals.

  In addition to the silicon materials described above, solar cells can also be made from other materials such as, for example, III-V compound semiconductor materials such as indium gallium arsenide (InGaAs) and gallium arsenide (GaAs). . Unlike solar energy technology using crystalline silicon, solar cells made of III-V compound semiconductor materials can absorb a wider solar spectrum energy, so that the maximum is almost 60% to over 70%. Achieve high photoelectric conversion efficiency.

  However, the manufacturing cost and price of solar cells made of III-V compound semiconductor materials are also the highest among all types of solar cells. Therefore, in order to reduce the use of solar cells and reduce the power generation cost, the solar light collecting device is provided to reduce the light absorption region. However, the cost is offset only when the solar concentrator is required to be installed in a large area, which causes inconvenience in application and limits the application of solar cells. Therefore, how to effectively reduce the power generation cost of the solar cell is one of the main issues that are actually being urgently solved by those skilled in the art.

  The present disclosure provides a focused solar light induction module suitable for solving the above problems and reducing the power generation cost of a solar cell.

  The present disclosure relates to a focused solar light induction module suitable for directing solar radiation to an energy conversion device.

  The focused solar light induction module includes a lens array plate and a light guide plate. The lens array plate comprises at least one lens, each lens having an upper curved surface and a lower flat surface. The lens array plate receives sunlight and focuses it. The light guide plate has an upper flat surface and a lower microstructured surface. The upper flat surface of the light guide plate is configured to be parallel to the lower flat surface of the lens array plate. The lower microstructured surface of the light guide plate comprises at least one concave area and at least one connection area. The connection region is parallel to the upper flat surface of the light guide plate and is connected between adjacent concave regions. The recessed area includes a recessed point, a first inclined plane, and a second inclined plane. The first inclined plane and the second inclined plane are located on different sides of the concave point, and are connected between the concave point and the adjacent connection region. After being focused by the lens array plate, the sunlight is reflected twice following the concave and connected areas and is guided into the light guide plate by total internal reflection. Sun rays pass through at least one side of the light guide plate. The energy conversion device is disposed in contact with or near the side surface of the light guide plate, receives sunlight rays passing through the side surface of the light guide plate, and converts the sunlight rays into electric power.

  The present disclosure further relates to a focused solar light induction module suitable for directing solar radiation to an energy conversion device in another way.

  The focused solar light induction module includes a light guide plate and a lens array plate. The light guide plate has an upper microstructured surface and a lower flat surface. The upper microstructured surface comprises at least one concave area and at least one connection area. The connection region is parallel to the lower flat surface of the light guide plate and is connected between adjacent concave regions. The recessed area includes a recessed point, a first inclined plane, and a second inclined plane. The first inclined plane and the second inclined plane are located on different sides of the concave point, and are connected between the concave point and the adjacent connection region. The lens array plate includes at least one lens, and each lens has an upper flat surface and a lower curved surface. The upper flat surface of the lens is configured to be parallel to the lower flat surface of the light guide plate. After passing through the light guide plate and reflected by the downward curved surface, the sunlight is reflected twice in succession to the concave area and the connection area of the upper fine structure surface of the light guide plate, and is totally reflected by the internal reflection. Sun rays pass through at least one side of the light guide plate. The energy conversion device is disposed in contact with or near the side surface of the light guide plate, receives sunlight rays passing through the side surface of the light guide plate, and converts the sunlight rays into electric power.

  The present disclosure will be more fully understood from the following detailed description, which is intended to be exemplary only and does not limit the present disclosure.

It is the schematic of the focused sunlight induction module by 1st Embodiment. It is a side view of FIG. 1A. It is the elements on larger scale of FIG. 1B. It is the schematic of the focused sunlight induction module by 2nd Embodiment. It is a structure side view of the focusing sunlight induction module by 3rd Embodiment. It is the schematic of the focused sunlight induction module by 4th Embodiment. It is the schematic of the focused sunlight induction module by 5th Embodiment. FIG. 3B is a side view of FIG. 3A. It is the elements on larger scale of FIG. 3B. It is the schematic of the focused sunlight induction module by 6th Embodiment. FIG. 4B is a side view of FIG. 4A. It is the elements on larger scale of FIG. 4B. It is the schematic of the focused sunlight induction module by 7th Embodiment. It is the schematic of the focused sunlight induction module by 8th Embodiment. FIG. 5B is a side view of FIG. 5A. It is the elements on larger scale of FIG. 5B. 1D is a schematic diagram of FIG. 1D. FIG. FIG. 6B is a graph of intensity with standardized light induction efficiency according to FIG. 6A. FIG. 6B is a graph of intensity with standardized light induction efficiency according to FIG. 6A. FIG. 6B is a schematic diagram of the lens of FIG. 6A designed as a movable lens to achieve a light-guided effect of tracking the seasonal sun.

  In the following detailed description, for the purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, it will be apparent that one or more embodiments may be practiced without these specific details. In addition, in order to simplify the drawings, known structures and apparatuses are schematically shown.

  FIG. 1A is a schematic diagram of a focused solar light induction module according to a first embodiment. FIG. 1B is a side view of FIG. 1A. FIG. 1C is a partially enlarged view of FIG. 1B. Please refer to FIGS. 1A to 1C for the following description.

First embodiment:
The focused sunlight guiding module 1000 includes a lens array plate 1100 and a light guiding plate 120. An energy conversion device 140 is disposed in contact with or near the first side surface 12 of the light guide plate 120. The energy conversion device 140 can be a photoelectric conversion device or a thermoelectric conversion device, but is not limited thereto. The focused sunlight induction module 1000 is suitable for guiding the sunlight rays 180 to the energy conversion device 140 for photoelectric conversion or thermoelectric conversion, and the sunlight rays 180 are regarded as ideal parallel rays.

  The lens array plate 1100 receives the sunlight rays 180 and focuses them. The lens array plate 1100 includes at least one lens 110, and each lens 110 has an upper curved surface 110a and a lower flat surface 110b. For example, the lens array plate 1100 may be a lenticular lens array film manufactured using a roll-to-roll (R2R) method, but is not limited thereto. The lower flat surface 110b of the lens 110 is defined to have a radial distance between the two end points of the upper curved surface 110a. The length of the lower flat surface 110b of the single lens 110 is W. In one embodiment, each lens 110 is a hemispherical cylindrical lens. The upper curved surfaces 110a are connected to each other, and the lower flat surfaces 110b are connected to each other. The lenses 110 are arranged in parallel to form a lens array plate 1100.

  The light guide plate 120 has an upper flat surface 120a and a lower microstructure surface 120b. The thickness h of the light guide plate 120 is the distance between the upper flat surface 120a and the lower microstructure surface 120b. The upper flat surface 120 a of the light guide plate 120 is configured to be parallel to the lower flat surface 110 b of the lens 110. In the focused solar light induction module according to the first embodiment of the present disclosure, the following explanation is that the upper flat surface 120a of the light guide plate 120 is parallel to the lower flat surface 110b of the lens 110 and is in close contact therewith. Is based on being. However, in other embodiments, the upper flat surface 120a of the light guide plate 120 may be spaced apart and parallel to the lower flat surface 110b of the lens 110. The connection relationship between the upper flat surface 120a of the light guide plate 120 and the lower flat surface 110b of the lens 110 is not intended to limit the scope of the present disclosure.

  The lower microstructured surface 120b includes at least one concave region 130 and at least one connection region 132. The connection region 132 is parallel to the upper flat surface 120 a of the light guide plate 120, and the connection region 132 is connected between the adjacent concave regions 130. That is, in the focused solar light induction module according to the first embodiment of the present disclosure, the recessed regions 130 are separated from each other (that is, not continuous) and are disposed on the lower microstructure surface 120b. Every two concave regions 130 are separated from each other by a connection region 132. Therefore, the lower microstructure surface 120b of the light guide plate 120 has a concave region 130 that is not continuous. In one embodiment, the position of each concave region 130 is related to the position of one upper curved surface 110a of the lens 110. As a result, corresponding to the structure of the hemispherical cylindrical lens 110, the concave region 130 is configured in a stripe structure. In particular, the depression angle between the axial direction of the hemispherical cylindrical lens 110 and the axial direction of the concave region 130 is 0 ° (that is, the axial direction of the hemispherical cylindrical lens 110 is parallel to the axial direction of the concave region 130. is there).

Referring to FIG. 1C, the recessed area 130 includes a recessed point 130a, a first inclined plane 130b, and a second inclined plane 130c. The first inclined plane 130b and the second inclined plane 130c are located on different sides of the concave point 130a. Both inclined planes are connected between the recessed point 130a and the adjacent connection region 132, respectively. The first inclined plane 130 b faces the first side surface 12. Therefore, the shape of the concave region 130 is substantially an inverted V-cut, and has a concave point 130a and two slopes immediately adjacent thereto (a first slope plane 130b and a second slope plane 130c). The concave point 130 a forms a vertical line perpendicular to the connection region 132. The depression angle (that is, the first depression angle) between the first inclined plane 130b and the vertical line of the connection region 132 is θ ₁ . The included angle (that is, the second included angle) between the second inclined plane 130c and the vertical line of the connection region 132 is θ ₂ . The length of the extension of the connection region 132 between the vertical line and the adjacent connection region 132 of the inclined planes 130b and 130c is d ₁ and d ₂ , respectively.

According to the first embodiment of the present disclosure, the depression angles θ ₁ and θ ₂ are both between 15 ° and 60 °. The length W of the lower flat surface 110b of the lens 110 is at least twice the sum of the lengths d ₁ and d ₂ , that is, W ≧ 2 (d ₁ + d ₂ ).

  After being focused by the lens array plate 1100, the sunlight 180 is reflected twice following the concave region 130 and the connection region 132. Next, the sun rays 180 are guided into the light guide plate 120 by total internal reflection. Finally, the sun rays 180 pass through the first side surface 12 of the light guide plate 120. The energy conversion device 140 is disposed in contact with or in the vicinity of the first side surface 12, receives the sunlight rays 180, and converts the sunlight rays 180 into electric power. In particular, referring to FIGS. 1B and 1C, the focal point of the sun rays 180 passing through the lens 110 is located above the first inclined plane 130b. After the sun rays 180 pass through the lens array plate 1100 and are focused by the lens array plate 1100, the focus of the focused sun rays 180 is disposed above the first inclined plane 130b. Thereafter, the focused sunbeam 180 is irradiated on the first inclined plane 130b of the recessed area 130, and then reflected by the first inclined plane 130b (this forms a first reflection), thereby adjacent connection areas. Advance to 132. In this embodiment, the focal point of the lens array plate 1100 is located above the first inclined plane 130b. However, the focal point of the lens array plate 1100 may be located on the first inclined plane 130b. , May be positioned below the first inclined plane 130b. The present disclosure is not limited to this.

よりも大きくなければならず、この臨界角は、光が全反射し、光誘導プレート１２０内を行ったり来たりして反射するために十分なものである。 Next, the sun rays 180 are reflected at the connection region 132 (thus forming a second reflection), so that the sun rays 180 are refracted at a larger angle. Next, the sunbeam 180 is reflected between the upper flat surface 120a and the lower microstructured surface 120b of the light guide plate 120 by total internal reflection, and as a result, the sunbeam 180 is reflected by the first light guide plate 120. Guided toward side 12. Therefore, the sun rays 180 finally pass through the first side surface 12 of the light guide plate 120. The energy conversion device 140 disposed in contact with or in the vicinity of the first side surface 12 can receive the sunlight rays 180 that pass through the first side surface 12, and thus can convert the sunlight rays 180 into electric power. The refractive index of the light introducing plate 120, referred to as n _c. When the sunlight ray 180 is incident on the connection region 132 and is reflected for the second time (second reflection), the incident angle of the sunlight ray 180 is a critical angle between the light guide plate 120 and the air.

This critical angle is sufficient for the light to be totally reflected and reflected back and forth within the light guide plate 120.

  In the focused sunlight guiding module according to the first embodiment of the present disclosure, the thickness h of the light guiding plate 120 and the length W of the lower flat surface 110b of the lens 110 are in a relationship of h ≧ W. In addition, when the lens array plate 1100 has N lenses 110, h, W, and N are in a relationship of N × W ≦ 50 × h. For example, N, W, and h are designed to be 70, 3 mm, and 10 mm, respectively.

The refractive index n _l of the lens array plate 1100 is smaller than the refractive index n _c of the light guide plate 120 so that the sunlight 180 can be guided into the light guide plate 120.

Second embodiment:
FIG. 1D is a schematic diagram of a focused solar light induction module according to a second embodiment of the present disclosure. The focused sunlight guiding module includes a lens array plate 1100, a light guiding plate 120, and an interface layer 150. The interface layer 150 is disposed between the lens array plate 1100 (lens 110) and the light guide plate 120. As can be derived sunlight 180 into light guiding plate, a refractive index n _i of the interface layer 150 is smaller than the refractive index n _c of the light introducing plate 120, refractive index n _i of the interface layer 150, like the lens It is smaller than the refractive index n _l of the array plate 1100.

Third embodiment:
FIG. 2A is a side view of a focused solar light induction module according to a third embodiment of the present disclosure. In order to increase the intensity of the guided light, each lens 110 ′ has a sawtooth shape with a curved cross-sectional profile, and the lens 110 ′ includes an upper curved surface 110a ′, a lower flat surface 110b ′, and a connection surface 110c. . The connection surface 110c connects two upward curved surfaces 110a ′ adjacent to each other. In this embodiment, the upper curved surface 110a ′ is oriented in a direction corresponding to the first side surface 12, so that the sun rays 180 are focused on the light guide plate 120 when entering the lens 110 ′, The light is refracted in a direction inclined from the center of the curved surface 110a ′ toward the first side surface 12. Therefore, the sunlight rays 180 that are focused and pass through the lens 110 ′ are incident on the first inclined plane 130 b at a larger incident angle, and the intensity of light reflected by the first inclined plane 130 b increases. In this embodiment, the connection surface 110c is a vertical surface, but in other embodiments, the connection surface 110c may be a slope. The present disclosure is not limited to this.

Fourth embodiment:
FIG. 2B is a schematic diagram of a focused solar light induction module according to a fourth embodiment of the present disclosure. In addition to the lens array plate 1100 and the light guide plate 120, the focused sunlight guide module further includes a condenser lens 160. In the focused solar light induction module according to the fourth embodiment of the present disclosure, the condensing lens 160 is disposed between the first side surface 12 and the energy conversion device 140 ′, and thus enters the energy conversion device 140 ′. Before, the sun rays 180 first pass through the condensing lens 160, further narrowing the condensing range of the sun rays 180 passing through the light guide plate 120, thereby saving the use and occupied area of the energy conversion device 140 ′. To achieve a compact design.

Fifth embodiment:
FIG. 3A is a schematic diagram of a focused solar light induction module according to a fifth embodiment of the present disclosure, and FIG. 3B is a side view of FIG. 3A. FIG. 3C is a partially enlarged view of FIG. 3B. See FIGS. 3A-3C for the following discussion.

  The focused sunlight guiding module 2000 includes a lens array plate 1100 and a light guiding plate 120. The light guide plate 120 has two different side surfaces, a first side surface 12 and a second side surface 12a, each side surface having an energy conversion device 140 arranged in contact with or near the side surface. . The focused sunlight induction module 2000 is suitable for guiding the sunlight rays 180 to the energy conversion device 140 for photoelectric conversion or thermoelectric conversion, and the sunlight rays 180 are regarded as ideal parallel rays.

  The lens array plate 1100 receives the sunlight rays 180 and focuses them. The lens array plate 1100 includes at least one lens 110 and a light guide plate 120, and the light guide plate has an upper flat surface 120a and a lower microstructure surface 120b. All device configurations and microstructure designs are the same as in the first embodiment of the present disclosure, and will not be repeated here. In the focused solar light induction module according to the fifth embodiment of the present disclosure as illustrated in FIG. 3C, the focal point of the solar ray 180 passing through the lens 110 is located above the concave point 130a. In particular, after the sun rays 180 are focused by the lens array plate 1100, the focus of the sun rays 180 is located above the concave point 130a. Next, the focused sunlight 180 is reflected by the first inclined plane 130b and the second inclined plane 130c, and proceeds to a different side of the concave point 130a. In this embodiment, the focal point of the lens array plate 1100 is located above the concave point 130a, but the focal point of the lens array plate 1100 may be located at the concave point 130a or below the concave point 130a. May be located. The present disclosure is not limited to this.

  Next, the sun rays 180 are reflected at the connection region 132 so that the light rays are refracted at a larger angle. The sunlight 180 is totally internally reflected between the upper flat surface 120a and the lower microstructure surface 120b of the light guide plate 120. Therefore, the sunlight 180 is guided toward both the first side surface 12 and the second side surface 12a of the light guide plate 120. Therefore, the sun rays 180 finally travel toward two different sides of the recessed point 130a and pass through the first side surface 12 and the second side surface 12a of the light guide plate 120. The first inclined plane 130b faces toward the first side face 12, and the second inclined plane 130c faces toward the second side face 12a. Finally, the energy conversion device 140 disposed in contact with or in the vicinity of the first side surface 12 and the second side surface 12a receives the sunlight rays 180 that pass through the light guide plate 120, and in response to this, The light beam 180 can be converted into electric power.

Sixth embodiment:
FIG. 4A is a schematic diagram of a focused solar light induction module according to a sixth embodiment of the present disclosure. FIG. 4B is a side view of FIG. 4A. FIG. 4C is a partially enlarged view of FIG. 4B. See FIGS. 4A-4C for the following discussion.

  The focused sunlight guiding module 3000 includes a light guiding plate 210 and a lens array plate 2200. An energy conversion device 240 is disposed in contact with or near the first side surface 12 of the light guide plate 210. The energy conversion device 240 can be a photoelectric conversion device or a thermoelectric conversion device, but is not limited thereto. The focused solar light induction module 3000 is suitable for guiding the solar light 280 to the energy conversion device 240 for photoelectric conversion or thermoelectric conversion, and the solar light 280 is regarded as an ideal parallel light beam.

  The light guide plate 210 has an upper microstructured surface 210a and a lower flat surface 210b. The thickness h ′ of the light guide plate 210 is the distance between the upper fine structure surface 210a and the lower flat surface 210b. The upper microstructured surface 210 a includes at least one concave region 230 and at least one connection region 232. The connection region 232 is parallel to the lower flat surface 210b of the light guide plate 210, and the connection region 232 is connected between the concave regions 230 adjacent to each other. That is, in the focused solar light induction module according to the sixth embodiment of the present disclosure, the recessed regions 230 are separated from each other (that is, not continuous) and are disposed on the upper microstructure surface 210a. Every two concave regions 230 are separated from each other by a connection region 232. Therefore, the upper fine structure surface 210a of the light guide plate 210 has a concave region 230 that is not continuous.

Referring to FIG. 4C, the recessed area 230 includes a recessed point 230a, a first inclined plane 230b, and a second inclined plane 230c. The first inclined plane 230b and the second inclined plane 230c are respectively located on different sides of the concave point 230a. Both inclined planes are connected between the recess 230a and the connection region 232 adjacent thereto. The first inclined plane 230 b faces the first side surface 12. Therefore, the shape of the concave region 230 is substantially V-cut, and has a concave point 230a and two slopes immediately adjacent thereto (a first slope plane 230b and a second slope plane 230c). The concave point 230 a forms a vertical line perpendicular to the connection region 232. The depression angle (that is, the first depression angle) between the first inclined plane 230b and the vertical line of the connection region 232 is θ ₁ ′. A depression angle (that is, a second depression angle) between the second inclined plane 230c and the vertical line of the connection region 232 is θ ₂ ′. Between the vertical line and the adjacent connection region 232 of the inclined planes 230b and 230c, the length of the extension of the connection region 232 is d ₁ ′ and d ₂ ′, respectively.

According to the sixth embodiment of the present disclosure, both the depression angles θ ₁ ′ and θ ₂ ′ are between 15 ° and 60 °. The length W ′ of the upper flat surface 220a of the lens 220 is at least twice the sum of the lengths d ₁ ′ and d ₂ ′, that is, W ′ ≧ 2 (d ₁ ′ + d ₂ ′).

  4A and 4B, the lens array plate 2200 includes at least one lens 220, and each lens 220 has an upper flat surface 220a and a lower curved surface 220b. For example, the lens array plate 2200 may be a lenticular lens array film manufactured using a roll-to-roll (R2R) method, but is not limited thereto. The length of the upper flat surface 220a of one lens 220 is W '. In one embodiment, each lens 220 is a hemispherical cylindrical lens. The upper flat surfaces 220a are connected to each other, and the lower curved surfaces 220b are connected to each other. The lenses 220 are arranged in parallel to form a lens array plate 2200.

  The downward curved surface 220b is covered with a reflective layer 281. Therefore, the sunlight 280 is reflected by the reflection layer 281 and focused, and can proceed to the light guide plate 210. The reflective layer 281 can be made of a reflective material such as a metal, a total reflection multilayer, or a white reflector.

  The upper flat surface 220 a of the lens 220 is configured to be parallel to the lower flat surface 210 b of the light guide plate 210. In the focused solar induction module according to the sixth embodiment of the present disclosure, the following description is such that the upper flat surface 220a of the lens 220 is parallel to and in close contact with the lower flat surface 210b of the light guide plate 210. Is based on being. However, the upper flat surface 220a of the lens 220 may be fixed apart from the lower flat surface 210b of the light guide plate 210 with a gap therebetween, and may be parallel thereto. The connection relationship between the upper flat surface 220a of the lens 220 and the lower flat surface 210b of the light guide plate 210 is not intended to limit the scope of the present disclosure.

  After passing through the light guide plate 210, the sunlight 280 is reflected and focused by the lower curved surface 220 b of the lens 220 of the lens array plate 2200 and travels to the upper microstructure surface 210 a of the light guide plate 210. Next, the sunlight 280 is reflected twice following the concave region 230 and the connection region 232, and is guided into the light guide plate 210 by total internal reflection. Finally, the sunlight 280 passes through the first side surface 12 of the light guide plate 210. The energy conversion device 240 is disposed in contact with or in the vicinity of the first side surface 12, receives the sunlight 280, and converts the sunlight 280 into electric power. 4B and 4C, the focal point of the sunlight 280 reflected and focused by the lens 220 is located below the first inclined plane 230b. After the sunlight 280 passes through the light guide plate 210 and enters the lens array plate 2200, the sunlight 280 is reflected by the lower curved surface 220 b provided with the reflective layer 281, and then the first of the concave region 230. Focused below the inclined plane 230b. Next, the focused sunbeam 280 is first irradiated on the first inclined plane 230b of the concave region 230 and reflected by the first inclined plane 230b (this forms a first reflection) and adjacent to the first inclined plane 230b. The process proceeds to the connection area 232 to be operated. In this embodiment, the focal point of the lens array plate 2200 is located below the first inclined plane 230b. However, the focal point of the lens array plate 2200 may be located on the first inclined plane 230b. , May be positioned above the first inclined plane 230b. The present disclosure is not limited to this.

よりも大きくなければならず、この臨界角は、光が全反射して、光誘導プレート２１０内を行ったり来たりして反射するために十分なものである。 Next, the sun rays 280 are reflected at the connection region 232 (and thereby form a second reflection), so that the sun rays 280 are refracted at a larger angle. Next, the sunbeam 280 is reflected between the upper microstructured surface 210 a and the lower flat surface 210 b of the light guide plate 210, so that the sunbeam 280 is directed toward the first side surface 12 of the light guide plate 210. Be guided. Therefore, the sun rays 280 finally pass through the first side surface 12 of the light guide plate 210. The energy conversion device 240 disposed in contact with or in the vicinity of the first side surface 12 can receive the solar rays 280 passing through the first side surface 12, and can convert the solar rays 280 into electric power accordingly. . The refractive index of the light guide plate 210 is expressed as n _c ′. When the sunlight 280 enters the connection region 232 and is reflected for the second time (second reflection), the incident angle of the sunlight 280 is the critical angle between the light guide plate 210 and the air.

This critical angle is sufficient for the light to be totally reflected and reflected back and forth within the light guide plate 210.

  In the focused sunlight guiding module according to the sixth embodiment of the present disclosure, the thickness h ′ of the light guiding plate 210 and the length W ′ of the upper flat surface 220a of the lens 220 are in a relationship of h ′ ≧ W ′. In addition, when the lens array plate 2200 has N lenses 220, h ′, W ′, and N have a relationship of N × W ′ ≦ 50 × h ′. For example, N, W ′, and h ′ are designed to be 70, 3 mm, and 10 mm, respectively.

The refractive index n _l ′ of the lens array plate 2200 is smaller than the refractive index n _c ′ of the light guide plate 210 so that the sunlight 280 can be guided into the light guide plate 210.

Seventh embodiment:
FIG. 4D is a schematic diagram of a focused solar light induction module according to a seventh embodiment of the present disclosure. The focused sunlight guiding module includes a light guiding plate 210, a lens array plate 2200, and an interface layer 150. The interface layer 150 is disposed between the light guide plate 210 and the lens array plate 2200 (lens 220). As can be derived sunlight 280 into light guiding plate 210, the refractive index n _i of the interface layer 150 ', the refractive index n _c of the light introducing plate 210' smaller than the refractive index of the interface layer 150 n _i ' Is smaller than the refractive index n _l ′ of the lens array plate 2200.

Eighth embodiment:
FIG. 5A is a schematic diagram of a focused solar light induction module according to an eighth embodiment of the present disclosure. FIG. 5B is a side view of FIG. 5A. FIG. 5C is a partially enlarged view of FIG. 5B. See FIGS. 5A-5C for the following discussion.

  The focused sunlight guiding module 4000 includes a light guiding plate 210 and a lens array plate 2200. The light guide plate 210 has two different side surfaces, a first side surface 12 and a second side surface 12a, each side having an energy conversion device 240 arranged in contact with or near the side surface. . The focused solar light induction module 4000 is suitable for guiding the solar light 280 to the energy conversion device 240 for photoelectric conversion or thermoelectric conversion, and the solar light 280 is regarded as an ideal parallel light beam.

  The lens array plate 2200 includes at least one lens 220 and a light guide plate 210, the light guide plate having an upper microstructured surface 210a and a lower flat surface 210b. All device configurations and microstructure designs are the same as in the sixth embodiment of the present disclosure, and will not be repeated here. In the focused sunlight guidance module according to the eighth embodiment of the present disclosure as shown in FIG. 5C, the focal point of the sunlight 280 reflected and focused by the lens array plate 2200 is located below the concave point 230a. The focal point of the sunlight 280 reflected and focused by the reflective layer 281 is disposed below the concave point 230a. Therefore, the focused sunlight 280 travels toward the slopes on the two different sides of the recessed point 230a, respectively, where it is irradiated onto the first inclined plane 230b and the second inclined plane 230c of the recessed area 230, The light is reflected by the first inclined plane 230b and the second inclined plane 230c and proceeds to the connection region 232 adjacent to the inclined plane. In this embodiment, the focal point of the lens array plate 2200 is located below the concave point 230a. However, the focal point of the lens array plate 2200 may be located at the concave point 230a or above the concave point 230a. May be located. The present disclosure is not limited to this.

  Next, the sun rays 280 are reflected at the connection region 232 so that the light is refracted at a larger angle. The sunlight 280 is totally internally reflected between the upper fine structure surface 210 a and the lower flat surface 210 b of the light guide plate 210. Therefore, the sunlight 280 is guided toward both the first side surface 12 and the second side surface 12a of the light guide plate 210. The sun rays 280 pass through the first side surface 12 and the second side surface 12a of the light guide plate 210. The first inclined plane 230b faces toward the first side face 12, and the second inclined plane 230c faces toward the second side face 12a. Finally, the energy conversion device 240 disposed in contact with or in the vicinity of the first side surface 12 and the second side surface 12a receives the sunlight 280 that passes through the light guide plate 220, and in response to this, The light beam 280 can be converted into electric power.

  In view of the above, in the focused solar light induction module according to any embodiment of the present disclosure, the lens of the focused solar light induction module is replaced with a lens having a sawtooth shape with a curved cross-sectional profile as illustrated in FIG. The intensity of the guided light can be increased. Instead, as shown in FIG. 2B, a condensing lens 160 is placed between the first side 12 of the light guide plate and the energy conversion device 140 ′, and the sun exiting from the first side 12 To narrow the light collection range further. Then, the occupation area of the energy conversion device 140 'can be further reduced. One skilled in the art will be able to design the details of the solar light induction module in light of any embodiment of the present disclosure. The above embodiments are not intended to limit the scope of the present disclosure.

6A is a schematic diagram of FIG. 1D. The axial direction of the lenticular lens 110 is configured to be parallel to the east-west direction indicated as the direction EW in which the sun rises and sinks. 6B and 6C are the results of simulating the standard efficiency of light guidance according to FIG. 6A. The simulation parameters are as follows:
R (the radius of curvature of the lenticular lens) = 4.09 mm
n _l = 1.56
n _i = 1.00
n _c = 1.49
h = 10mm
W = 3.46mm
N × W = 210mm
θ ₁ = 40 °
θ ₂ = 20 °
d ₁ = 0.302 mm
d ₂ = 0.131 mm

  At noon, the sunlight 180 enters the focused solar induction module at a normal angle (i.e., an incident angle of 0 °), and the efficiency of simulating the optical induction of the focused solar induction module according to the present disclosure is approximately 60%.

  When the incident angle of the sunbeam 180 is between ± 30 degrees (ie, 10:00 am to 2:00 pm during the day), the standard efficiency of light guidance of the focused solar induction module according to the present disclosure is It can exceed 55%. Since the axial direction of the lenticular lens 110 is parallel to the east-west direction, the change in the incident angle caused by the sun rising and sinking during the day is unlikely to occur. Therefore, the focused solar light induction module according to the present embodiment can still achieve the relative efficiency of light induction exceeding 55% without being equipped with a system for tracking the sun after noon.

  As shown in FIG. 6C, the angle change due to the season of the focused solar light induction module according to the present embodiment can be set to ± 1 degree at the maximum. Therefore, when the sensitivity of the angle change with respect to the seasonal change of the light guiding module is reduced, in the focused sunlight guiding module according to the present embodiment, the lens array plate is also moved in the north-south direction as shown in FIG. 6D. (Ie, the lens array plate is designed to be an array of movable lenses). Since the seasonal variation element changes the incident angle of the sunbeam 180, the lens array plate moves in the north-south direction, and the focused sunbeam 180 can also fall in the vicinity of the concave region 130 of the light guide plate 120. To achieve the light guiding effect of tracking the sun for each season.

  In addition, when the axial direction of the lenticular lens 110 is configured to be parallel to the east-west direction represented as the direction EW as shown in FIG. 6A, the side surface of the light guide plate 120 facing the east-west direction is reflected. Covering with layer 121 (metal, total reflection multilayer and white reflector, etc.) eliminates the problem of light leakage from the surface.

  In view of the above, in the focused solar light induction module according to the present disclosure, the incident solar light is focused by the lens array plate, reflected by the fine structure on the surface of the light guide plate, and guided into the light guide plate. be able to. After passing through the side surface of the light guide plate, the sunlight is received by an energy conversion device disposed in contact with or near the side surface and converted into electric power. Thus, a focused solar induction module according to the present disclosure reduces the use of solar cells, reduces module costs, and maintains high efficiency of light induction without a solar tracking system.

  The present disclosure relates to a focused sunlight induction module, and more particularly, to a focused sunlight induction module including a microstructured light guide plate.

  With the rapid development of the industry, the issue of fossil fuel depletion and greenhouse gas emissions is increasingly concerned all over the world, and the stable supply of energy resources is clearly a major global issue It has become. Compared with conventional coal-fired power generation, gas-fired power generation, or nuclear power generation, solar cells convert solar energy directly into electrical energy by the photoelectric conversion or thermoelectric conversion effect, and carbon dioxide, nitrogen oxide, and sulfur oxidation Reduces dependence on fossil fuels and provides a safe and independent power source because it does not produce greenhouse gases or pollutant gases.

  In many solar cell technologies, solar radiation converted by the solar cell material has become a convenient power source for use. Taking a crystalline silicon solar cell as an example, a crystalline silicon solar cell has a photoelectric conversion efficiency of 12% to 20%, and a solar cell designed using different crystalline materials has different photoelectric characteristics. In general, since the conversion efficiency of a single crystal silicon or polycrystalline solar cell is about 14% or 16%, the lifetime is increased, but the power generation cost of the single crystal silicon or polycrystalline solar cell is high. Therefore, government subsidies are required and this type of solar cell can only be applied to power plant or traffic light signals.

  In addition to the silicon materials described above, solar cells can also be made from other materials such as, for example, III-V compound semiconductor materials such as indium gallium arsenide (InGaAs) and gallium arsenide (GaAs). . Unlike solar energy technology using crystalline silicon, solar cells made of III-V compound semiconductor materials can absorb a wider solar spectrum energy, so that the maximum is almost 60% to over 70%. Achieve high photoelectric conversion efficiency.

  However, the manufacturing cost and price of solar cells made of III-V compound semiconductor materials are also the highest among all types of solar cells. Therefore, in order to reduce the use of solar cells and reduce the power generation cost, the solar light collecting device is provided to reduce the light absorption region. However, the cost is offset only when the solar concentrator is required to be installed in a large area, which causes inconvenience in application and limits the application of solar cells. Therefore, how to effectively reduce the power generation cost of the solar cell is one of the main issues that are actually being urgently solved by those skilled in the art.

  The present disclosure provides a focused solar light induction module suitable for solving the above problems and reducing the power generation cost of a solar cell.

  The present disclosure relates to a focused solar light induction module suitable for directing solar radiation to an energy conversion device.

  The focused solar light induction module includes a lens array plate and a light guide plate. The lens array plate comprises at least one lens, each lens having an upper curved surface and a lower flat surface. The lens array plate receives sunlight and focuses it. The light guide plate has an upper flat surface and a lower microstructured surface. The upper flat surface of the light guide plate is configured to be parallel to the lower flat surface of the lens array plate. The lower microstructured surface of the light guide plate comprises at least one concave area and at least one connection area. The connection region is parallel to the upper flat surface of the light guide plate and is connected between adjacent concave regions. The recessed area includes a recessed point, a first inclined plane, and a second inclined plane. The first inclined plane and the second inclined plane are located on different sides of the concave point, and are connected between the concave point and the adjacent connection region. After being focused by the lens array plate, the sunlight is reflected twice following the concave and connected areas and is guided into the light guide plate by total internal reflection. Sun rays pass through at least one side of the light guide plate. The energy conversion device is disposed in contact with or near the side surface of the light guide plate, receives sunlight rays passing through the side surface of the light guide plate, and converts the sunlight rays into electric power.

  The present disclosure further relates to a focused solar light induction module suitable for directing solar radiation to an energy conversion device in another way.

  The focused solar light induction module includes a light guide plate and a lens array plate. The light guide plate has an upper microstructured surface and a lower flat surface. The upper microstructured surface comprises at least one concave area and at least one connection area. The connection region is parallel to the lower flat surface of the light guide plate and is connected between adjacent concave regions. The recessed area includes a recessed point, a first inclined plane, and a second inclined plane. The first inclined plane and the second inclined plane are located on different sides of the concave point, and are connected between the concave point and the adjacent connection region. The lens array plate includes at least one lens, and each lens has an upper flat surface and a lower curved surface. The upper flat surface of the lens is configured to be parallel to the lower flat surface of the light guide plate. After passing through the light guide plate and reflected by the downward curved surface, the sunlight is reflected twice in succession to the concave area and the connection area of the upper fine structure surface of the light guide plate, and is totally reflected by the internal reflection. Sun rays pass through at least one side of the light guide plate. The energy conversion device is disposed in contact with or near the side surface of the light guide plate, receives sunlight rays passing through the side surface of the light guide plate, and converts the sunlight rays into electric power.

The present disclosure further relates to a focused solar light induction module suitable for directing solar radiation to an energy conversion device in another way.

The focused sunlight guiding module includes a lens light guiding plate. The lens light guide plate has a lens array and a plurality of microstructures. The lens array is disposed on one surface of the lens light guiding plate, and the microstructure is disposed on the other surface opposite the lens light guiding plate. The lens array includes at least one lens having a curved surface. The lens array receives sunlight and focuses it. The microstructure comprises at least one concave area and at least one connection area. The connection region is connected between each of the at least one recess. The recessed area includes a recessed point, a first inclined plane, and a second inclined plane. The first inclined plane and the second inclined plane are respectively arranged on two different sides of the concave point, and are respectively connected between the concave point and the adjacent connection region. After the sunlight is focused by the lens light guide plate, the sunlight is reflected twice following the concave and connected areas of the microstructure of the lens light guide plate and guided into the light guide plate by total internal reflection. Sunlight passes through at least one side of the lens light guide plate. The energy conversion device is disposed in contact with or near the side surface of the lens light guide plate, receives sunlight rays passing through the lens light guide plate, and converts the sunlight rays into a power source.

  The present disclosure will be more fully understood from the following detailed description, which is intended to be exemplary only and does not limit the present disclosure.

It is the schematic of the focused sunlight induction module by 1st Embodiment. It is a side view of FIG. 1A. It is the elements on larger scale of FIG. 1B. It is the schematic of the focused sunlight induction module by 2nd Embodiment. It is a structure side view of the focusing sunlight induction module by 3rd Embodiment. It is the schematic of the focused sunlight induction module by 4th Embodiment. It is the schematic of the focused sunlight induction module by 5th Embodiment. FIG. 3B is a side view of FIG. 3A. It is the elements on larger scale of FIG. 3B. It is the schematic of the focused sunlight induction module by 6th Embodiment. FIG. 4B is a side view of FIG. 4A. It is the elements on larger scale of FIG. 4B. It is the schematic of the focused sunlight induction module by 7th Embodiment. It is the schematic of the focused sunlight induction module by 8th Embodiment. FIG. 5B is a side view of FIG. 5A. It is the elements on larger scale of FIG. 5B. It is the schematic of the focusing sunlight induction | guidance | derivation module by 9th Embodiment. It is the elements on larger scale of FIG. 6A. It is the schematic of the focused sunlight induction module by 10th Embodiment. It is the elements on larger scale of FIG. 7A. 1D is a schematic diagram of FIG. 1D. FIG. FIG. 8 is a graph of intensity with standardized light induction efficiency according to A. FIG. 8 is a graph of intensity with standardized light induction efficiency according to A. FIG. 8B is a schematic diagram of the lens of FIG. 8A designed as a movable lens to achieve a light-guided effect of tracking the sun for each season.

  In the following detailed description, for the purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, it will be apparent that one or more embodiments may be practiced without these specific details. In addition, in order to simplify the drawings, known structures and apparatuses are schematically shown.

  FIG. 1A is a schematic diagram of a focused solar light induction module according to a first embodiment. FIG. 1B is a side view of FIG. 1A. FIG. 1C is a partially enlarged view of FIG. 1B. Please refer to FIGS. 1A to 1C for the following description.

First embodiment:
The focused sunlight guiding module 1000 includes a lens array plate 1100 and a light guiding plate 120. An energy conversion device 140 is disposed in contact with or near the first side surface 12 of the light guide plate 120. The energy conversion device 140 can be a photoelectric conversion device or a thermoelectric conversion device, but is not limited thereto. The focused sunlight induction module 1000 is suitable for guiding the sunlight rays 180 to the energy conversion device 140 for photoelectric conversion or thermoelectric conversion, and the sunlight rays 180 are regarded as ideal parallel rays.

  The lens array plate 1100 receives the sunlight rays 180 and focuses them. The lens array plate 1100 includes at least one lens 110, and each lens 110 has an upper curved surface 110a and a lower flat surface 110b. For example, the lens array plate 1100 may be a lenticular lens array film manufactured using a roll-to-roll (R2R) method, but is not limited thereto. The lower flat surface 110b of the lens 110 is defined to have a radial distance between the two end points of the upper curved surface 110a. The length of the lower flat surface 110b of the single lens 110 is W. In one embodiment, each lens 110 is a hemispherical cylindrical lens. The upper curved surfaces 110a are connected to each other, and the lower flat surfaces 110b are connected to each other. The lenses 110 are arranged in parallel to form a lens array plate 1100.

  The light guide plate 120 has an upper flat surface 120a and a lower microstructure surface 120b. The thickness h of the light guide plate 120 is the distance between the upper flat surface 120a and the lower microstructure surface 120b. The upper flat surface 120 a of the light guide plate 120 is configured to be parallel to the lower flat surface 110 b of the lens 110. In the focused solar light induction module according to the first embodiment of the present disclosure, the following explanation is that the upper flat surface 120a of the light guide plate 120 is parallel to the lower flat surface 110b of the lens 110 and is in close contact therewith. Is based on being. However, in other embodiments, the upper flat surface 120a of the light guide plate 120 may be spaced apart and parallel to the lower flat surface 110b of the lens 110. The connection relationship between the upper flat surface 120a of the light guide plate 120 and the lower flat surface 110b of the lens 110 is not intended to limit the scope of the present disclosure.

  The lower microstructured surface 120b includes at least one concave region 130 and at least one connection region 132. The connection region 132 is parallel to the upper flat surface 120 a of the light guide plate 120, and the connection region 132 is connected between the adjacent concave regions 130. That is, in the focused solar light induction module according to the first embodiment of the present disclosure, the recessed regions 130 are separated from each other (that is, not continuous) and are disposed on the lower microstructure surface 120b. Every two concave regions 130 are separated from each other by a connection region 132. Therefore, the lower microstructure surface 120b of the light guide plate 120 has a concave region 130 that is not continuous. In one embodiment, the position of each concave region 130 is related to the position of one upper curved surface 110a of the lens 110. As a result, corresponding to the structure of the hemispherical cylindrical lens 110, the concave region 130 is configured in a stripe structure. In particular, the depression angle between the axial direction of the hemispherical cylindrical lens 110 and the axial direction of the concave region 130 is 0 ° (that is, the axial direction of the hemispherical cylindrical lens 110 is parallel to the axial direction of the concave region 130. is there).

Referring to FIG. 1C, the recessed area 130 includes a recessed point 130a, a first inclined plane 130b, and a second inclined plane 130c. The first inclined plane 130b and the second inclined plane 130c are located on different sides of the concave point 130a. Both inclined planes are connected between the recessed point 130a and the adjacent connection region 132, respectively. The first inclined plane 130 b faces the first side surface 12. Therefore, the shape of the concave region 130 is substantially an inverted V-cut, and has a concave point 130a and two slopes immediately adjacent thereto (a first slope plane 130b and a second slope plane 130c). The concave point 130 a forms a vertical line perpendicular to the connection region 132. The depression angle (that is, the first depression angle) between the first inclined plane 130b and the vertical line of the connection region 132 is θ ₁ . The included angle (that is, the second included angle) between the second inclined plane 130c and the vertical line of the connection region 132 is θ ₂ . The length of the extension of the connection region 132 between the vertical line and the adjacent connection region 132 of the inclined planes 130b and 130c is d ₁ and d ₂ , respectively.

According to the first embodiment of the present disclosure, the depression angles θ ₁ and θ ₂ are both between 15 ° and 60 °. The length W of the lower flat surface 110b of the lens 110 is at least twice the sum of the lengths d ₁ and d ₂ , that is, W ≧ 2 (d ₁ + d ₂ ).

  After being focused by the lens array plate 1100, the sunlight 180 is reflected twice following the concave region 130 and the connection region 132. Next, the sun rays 180 are guided into the light guide plate 120 by total internal reflection. Finally, the sun rays 180 pass through the first side surface 12 of the light guide plate 120. The energy conversion device 140 is disposed in contact with or in the vicinity of the first side surface 12, receives the sunlight rays 180, and converts the sunlight rays 180 into electric power. In particular, referring to FIGS. 1B and 1C, the focal point of the sun rays 180 passing through the lens 110 is located above the first inclined plane 130b. After the sun rays 180 pass through the lens array plate 1100 and are focused by the lens array plate 1100, the focus of the focused sun rays 180 is disposed above the first inclined plane 130b. Thereafter, the focused sunbeam 180 is irradiated on the first inclined plane 130b of the recessed area 130, and then reflected by the first inclined plane 130b (this forms a first reflection), thereby adjacent connection areas. Advance to 132. In this embodiment, the focal point of the lens array plate 1100 is located above the first inclined plane 130b. However, the focal point of the lens array plate 1100 may be located on the first inclined plane 130b. , May be positioned below the first inclined plane 130b. The present disclosure is not limited to this.

よりも大きくなければならず、この臨界角は、光が全反射し、光誘導プレート１２０内を行ったり来たりして反射するために十分なものである。 Next, the sun rays 180 are reflected at the connection region 132 (thus forming a second reflection), so that the sun rays 180 are refracted at a larger angle. Next, the sunbeam 180 is reflected between the upper flat surface 120a and the lower microstructured surface 120b of the light guide plate 120 by total internal reflection, and as a result, the sunbeam 180 is reflected by the first light guide plate 120. Guided toward side 12. Therefore, the sun rays 180 finally pass through the first side surface 12 of the light guide plate 120. The energy conversion device 140 disposed in contact with or in the vicinity of the first side surface 12 can receive the sunlight rays 180 that pass through the first side surface 12, and thus can convert the sunlight rays 180 into electric power. The refractive index of the light introducing plate 120, referred to as n _c. When the sunlight ray 180 is incident on the connection region 132 and is reflected for the second time (second reflection), the incident angle of the sunlight ray 180 is a critical angle between the light guide plate 120 and the air.

This critical angle is sufficient for the light to be totally reflected and reflected back and forth within the light guide plate 120.

  In the focused sunlight guiding module according to the first embodiment of the present disclosure, the thickness h of the light guiding plate 120 and the length W of the lower flat surface 110b of the lens 110 are in a relationship of h ≧ W. In addition, when the lens array plate 1100 has N lenses 110, h, W, and N are in a relationship of N × W ≦ 50 × h. For example, N, W, and h are designed to be 70, 3 mm, and 10 mm, respectively.

The refractive index n _l of the lens array plate 1100 is smaller than the refractive index n _c of the light guide plate 120 so that the sunlight 180 can be guided into the light guide plate 120.

Second embodiment:
FIG. 1D is a schematic diagram of a focused solar light induction module according to a second embodiment of the present disclosure. The focused sunlight guiding module includes a lens array plate 1100, a light guiding plate 120, and an interface layer 150. The interface layer 150 is disposed between the lens array plate 1100 (lens 110) and the light guide plate 120. As can be derived sunlight 180 into light guiding plate, a refractive index n _i of the interface layer 150 is smaller than the refractive index n _c of the light introducing plate 120, refractive index n _i of the interface layer 150, like the lens It is smaller than the refractive index n _l of the array plate 1100.

Third embodiment:
FIG. 2A is a side view of a focused solar light induction module according to a third embodiment of the present disclosure. In order to increase the intensity of the guided light, each lens 110 ′ has a sawtooth shape with a curved cross-sectional profile, and the lens 110 ′ includes an upper curved surface 110a ′, a lower flat surface 110b ′, and a connection surface 110c. . The connection surface 110c connects two upward curved surfaces 110a ′ adjacent to each other. In this embodiment, the upper curved surface 110a ′ is oriented in a direction corresponding to the first side surface 12, so that the sun rays 180 are focused on the light guide plate 120 when entering the lens 110 ′, The light is refracted in a direction inclined from the center of the curved surface 110a ′ toward the first side surface 12. Therefore, the sunlight rays 180 that are focused and pass through the lens 110 ′ are incident on the first inclined plane 130 b at a larger incident angle, and the intensity of light reflected by the first inclined plane 130 b increases. In this embodiment, the connection surface 110c is a vertical surface, but in other embodiments, the connection surface 110c may be a slope. The present disclosure is not limited to this.

Fourth embodiment:
FIG. 2B is a schematic diagram of a focused solar light induction module according to a fourth embodiment of the present disclosure. In addition to the lens array plate 1100 and the light guide plate 120, the focused sunlight guide module further includes a condenser lens 160. In the focused solar light induction module according to the fourth embodiment of the present disclosure, the condensing lens 160 is disposed between the first side surface 12 and the energy conversion device 140 ′, and thus enters the energy conversion device 140 ′. Before, the sun rays 180 first pass through the condensing lens 160, further narrowing the condensing range of the sun rays 180 passing through the light guide plate 120, thereby saving the use and occupied area of the energy conversion device 140 ′. To achieve a compact design.

Fifth embodiment:
FIG. 3A is a schematic diagram of a focused solar light induction module according to a fifth embodiment of the present disclosure, and FIG. 3B is a side view of FIG. 3A. FIG. 3C is a partially enlarged view of FIG. 3B. See FIGS. 3A-3C for the following discussion.

  The focused sunlight guiding module 2000 includes a lens array plate 1100 and a light guiding plate 120. The light guide plate 120 has two different side surfaces, a first side surface 12 and a second side surface 12a, each side surface having an energy conversion device 140 arranged in contact with or near the side surface. . The focused sunlight induction module 2000 is suitable for guiding the sunlight rays 180 to the energy conversion device 140 for photoelectric conversion or thermoelectric conversion, and the sunlight rays 180 are regarded as ideal parallel rays.

  The lens array plate 1100 receives the sunlight rays 180 and focuses them. The lens array plate 1100 includes at least one lens 110 and a light guide plate 120, and the light guide plate has an upper flat surface 120a and a lower microstructure surface 120b. All device configurations and microstructure designs are the same as in the first embodiment of the present disclosure, and will not be repeated here. In the focused solar light induction module according to the fifth embodiment of the present disclosure as illustrated in FIG. 3C, the focal point of the solar ray 180 passing through the lens 110 is located above the concave point 130a. In particular, after the sun rays 180 are focused by the lens array plate 1100, the focus of the sun rays 180 is located above the concave point 130a. Next, the focused sunlight 180 is reflected by the first inclined plane 130b and the second inclined plane 130c, and proceeds to a different side of the concave point 130a. In this embodiment, the focal point of the lens array plate 1100 is located above the concave point 130a, but the focal point of the lens array plate 1100 may be located at the concave point 130a or below the concave point 130a. May be located. The present disclosure is not limited to this.

  Next, the sun rays 180 are reflected at the connection region 132 so that the light rays are refracted at a larger angle. The sunlight 180 is totally internally reflected between the upper flat surface 120a and the lower microstructure surface 120b of the light guide plate 120. Therefore, the sunlight 180 is guided toward both the first side surface 12 and the second side surface 12a of the light guide plate 120. Therefore, the sun rays 180 finally travel toward two different sides of the recessed point 130a and pass through the first side surface 12 and the second side surface 12a of the light guide plate 120. The first inclined plane 130b faces toward the first side face 12, and the second inclined plane 130c faces toward the second side face 12a. Finally, the energy conversion device 140 disposed in contact with or in the vicinity of the first side surface 12 and the second side surface 12a receives the sunlight rays 180 that pass through the light guide plate 120, and in response to this, The light beam 180 can be converted into electric power.

Sixth embodiment:
FIG. 4A is a schematic diagram of a focused solar light induction module according to a sixth embodiment of the present disclosure. FIG. 4B is a side view of FIG. 4A. FIG. 4C is a partially enlarged view of FIG. 4B. See FIGS. 4A-4C for the following discussion.

  The focused sunlight guiding module 3000 includes a light guiding plate 210 and a lens array plate 2200. An energy conversion device 240 is disposed in contact with or near the first side surface 12 of the light guide plate 210. The energy conversion device 240 can be a photoelectric conversion device or a thermoelectric conversion device, but is not limited thereto. The focused solar light induction module 3000 is suitable for guiding the solar light 280 to the energy conversion device 240 for photoelectric conversion or thermoelectric conversion, and the solar light 280 is regarded as an ideal parallel light beam.

  The light guide plate 210 has an upper microstructured surface 210a and a lower flat surface 210b. The thickness h ′ of the light guide plate 210 is the distance between the upper fine structure surface 210a and the lower flat surface 210b. The upper microstructured surface 210 a includes at least one concave region 230 and at least one connection region 232. The connection region 232 is parallel to the lower flat surface 210b of the light guide plate 210, and the connection region 232 is connected between the concave regions 230 adjacent to each other. That is, in the focused solar light induction module according to the sixth embodiment of the present disclosure, the recessed regions 230 are separated from each other (that is, not continuous) and are disposed on the upper microstructure surface 210a. Every two concave regions 230 are separated from each other by a connection region 232. Therefore, the upper fine structure surface 210a of the light guide plate 210 has a concave region 230 that is not continuous.

Referring to FIG. 4C, the recessed area 230 includes a recessed point 230a, a first inclined plane 230b, and a second inclined plane 230c. The first inclined plane 230b and the second inclined plane 230c are respectively located on different sides of the concave point 230a. Both inclined planes are connected between the recess 230a and the connection region 232 adjacent thereto. The first inclined plane 230 b faces the first side surface 12. Therefore, the shape of the concave region 230 is substantially V-cut, and has a concave point 230a and two slopes immediately adjacent thereto (a first slope plane 230b and a second slope plane 230c). The concave point 230 a forms a vertical line perpendicular to the connection region 232. The depression angle (that is, the first depression angle) between the first inclined plane 230b and the vertical line of the connection region 232 is θ ₁ ′. A depression angle (that is, a second depression angle) between the second inclined plane 230c and the vertical line of the connection region 232 is θ ₂ ′. Between the vertical line and the adjacent connection region 232 of the inclined planes 230b and 230c, the length of the extension of the connection region 232 is d ₁ ′ and d ₂ ′, respectively.

According to the sixth embodiment of the present disclosure, both the depression angles θ ₁ ′ and θ ₂ ′ are between 15 ° and 60 °. The length W ′ of the upper flat surface 220a of the lens 220 is at least twice the sum of the lengths d ₁ ′ and d ₂ ′, that is, W ′ ≧ 2 (d ₁ ′ + d ₂ ′).

  4A and 4B, the lens array plate 2200 includes at least one lens 220, and each lens 220 has an upper flat surface 220a and a lower curved surface 220b. For example, the lens array plate 2200 may be a lenticular lens array film manufactured using a roll-to-roll (R2R) method, but is not limited thereto. The length of the upper flat surface 220a of one lens 220 is W '. In one embodiment, each lens 220 is a hemispherical cylindrical lens. The upper flat surfaces 220a are connected to each other, and the lower curved surfaces 220b are connected to each other. The lenses 220 are arranged in parallel to form a lens array plate 2200.

  The downward curved surface 220b is covered with a reflective layer 281. Therefore, the sunlight 280 is reflected by the reflection layer 281 and focused, and can proceed to the light guide plate 210. The reflective layer 281 can be made of a reflective material such as a metal, a total reflection multilayer, or a white reflector.

  The upper flat surface 220 a of the lens 220 is configured to be parallel to the lower flat surface 210 b of the light guide plate 210. In the focused solar induction module according to the sixth embodiment of the present disclosure, the following description is such that the upper flat surface 220a of the lens 220 is parallel to and in close contact with the lower flat surface 210b of the light guide plate 210. Is based on being. However, the upper flat surface 220a of the lens 220 may be fixed apart from the lower flat surface 210b of the light guide plate 210 with a gap therebetween, and may be parallel thereto. The connection relationship between the upper flat surface 220a of the lens 220 and the lower flat surface 210b of the light guide plate 210 is not intended to limit the scope of the present disclosure.

  After passing through the light guide plate 210, the sunlight 280 is reflected and focused by the lower curved surface 220 b of the lens 220 of the lens array plate 2200 and travels to the upper microstructure surface 210 a of the light guide plate 210. Next, the sunlight 280 is reflected twice following the concave region 230 and the connection region 232, and is guided into the light guide plate 210 by total internal reflection. Finally, the sunlight 280 passes through the first side surface 12 of the light guide plate 210. The energy conversion device 240 is disposed in contact with or in the vicinity of the first side surface 12, receives the sunlight 280, and converts the sunlight 280 into electric power. 4B and 4C, the focal point of the sunlight 280 reflected and focused by the lens 220 is located below the first inclined plane 230b. After the sunlight 280 passes through the light guide plate 210 and enters the lens array plate 2200, the sunlight 280 is reflected by the lower curved surface 220 b provided with the reflective layer 281, and then the first of the concave region 230. Focused below the inclined plane 230b. Next, the focused sunbeam 280 is first irradiated on the first inclined plane 230b of the concave region 230 and reflected by the first inclined plane 230b (this forms a first reflection) and adjacent to the first inclined plane 230b. The process proceeds to the connection area 232 to be operated. In this embodiment, the focal point of the lens array plate 2200 is located below the first inclined plane 230b. However, the focal point of the lens array plate 2200 may be located on the first inclined plane 230b. , May be positioned above the first inclined plane 230b. The present disclosure is not limited to this.

よりも大きくなければならず、この臨界角は、光が全反射して、光誘導プレート２１０内を行ったり来たりして反射するために十分なものである。 Next, the sun rays 280 are reflected at the connection region 232 (and thereby form a second reflection), so that the sun rays 280 are refracted at a larger angle. Next, the sunbeam 280 is reflected between the upper microstructured surface 210 a and the lower flat surface 210 b of the light guide plate 210, so that the sunbeam 280 is directed toward the first side surface 12 of the light guide plate 210. Be guided. Therefore, the sun rays 280 finally pass through the first side surface 12 of the light guide plate 210. The energy conversion device 240 disposed in contact with or in the vicinity of the first side surface 12 can receive the solar rays 280 passing through the first side surface 12, and can convert the solar rays 280 into electric power accordingly. . The refractive index of the light guide plate 210 is expressed as n _c ′. When the sunlight 280 enters the connection region 232 and is reflected for the second time (second reflection), the incident angle of the sunlight 280 is the critical angle between the light guide plate 210 and the air.

This critical angle is sufficient for the light to be totally reflected and reflected back and forth within the light guide plate 210.

  In the focused sunlight guiding module according to the sixth embodiment of the present disclosure, the thickness h ′ of the light guiding plate 210 and the length W ′ of the upper flat surface 220a of the lens 220 are in a relationship of h ′ ≧ W ′. In addition, when the lens array plate 2200 has N lenses 220, h ′, W ′, and N have a relationship of N × W ′ ≦ 50 × h ′. For example, N, W ′, and h ′ are designed to be 70, 3 mm, and 10 mm, respectively.

The refractive index n _l ′ of the lens array plate 2200 is smaller than the refractive index n _c ′ of the light guide plate 210 so that the sunlight 280 can be guided into the light guide plate 210.

Seventh embodiment:
FIG. 4D is a schematic diagram of a focused solar light induction module according to a seventh embodiment of the present disclosure. The focused sunlight guiding module includes a light guiding plate 210, a lens array plate 2200, and an interface layer 150. The interface layer 150 is disposed between the light guide plate 210 and the lens array plate 2200 (lens 220). As can be derived sunlight 280 into the light introducing plate 210, refractive index n _i of the interface layer 150 ', the refractive index n _c of the light introducing plate 210' smaller than the refractive index of the interface layer 150 n _i ' Is smaller than the refractive index n _l ′ of the lens array plate 2200.

Eighth embodiment:
FIG. 5A is a schematic diagram of a focused solar light induction module according to an eighth embodiment of the present disclosure. FIG. 5B is a side view of FIG. 5A. FIG. 5C is a partially enlarged view of FIG. 5B. See FIGS. 5A-5C for the following discussion.

  The focused sunlight guiding module 4000 includes a light guiding plate 210 and a lens array plate 2200. The light guide plate 210 has two different side surfaces, a first side surface 12 and a second side surface 12a, each side having an energy conversion device 240 arranged in contact with or near the side surface. . The focused solar light induction module 4000 is suitable for guiding the solar light 280 to the energy conversion device 240 for photoelectric conversion or thermoelectric conversion, and the solar light 280 is regarded as an ideal parallel light beam.

  The lens array plate 2200 includes at least one lens 220 and a light guide plate 210, the light guide plate having an upper microstructured surface 210a and a lower flat surface 210b. All device configurations and microstructure designs are the same as in the sixth embodiment of the present disclosure, and will not be repeated here. In the focused sunlight guidance module according to the eighth embodiment of the present disclosure as shown in FIG. 5C, the focal point of the sunlight 280 reflected and focused by the lens array plate 2200 is located below the concave point 230a. The focal point of the sunlight 280 reflected and focused by the reflective layer 281 is disposed below the concave point 230a. Therefore, the focused sunlight 280 travels toward the slopes on the two different sides of the recessed point 230a, respectively, where it is irradiated onto the first inclined plane 230b and the second inclined plane 230c of the recessed area 230, The light is reflected by the first inclined plane 230b and the second inclined plane 230c and proceeds to the connection region 232 adjacent to the inclined plane. In this embodiment, the focal point of the lens array plate 2200 is located below the concave point 230a. However, the focal point of the lens array plate 2200 may be located at the concave point 230a or above the concave point 230a. May be located. The present disclosure is not limited to this.

  Next, the sun rays 280 are reflected at the connection region 232 so that the light is refracted at a larger angle. The sunlight 280 is totally internally reflected between the upper fine structure surface 210 a and the lower flat surface 210 b of the light guide plate 210. Therefore, the sunlight 280 is guided toward both the first side surface 12 and the second side surface 12a of the light guide plate 210. The sun rays 280 pass through the first side surface 12 and the second side surface 12a of the light guide plate 210. The first inclined plane 230b faces toward the first side face 12, and the second inclined plane 230c faces toward the second side face 12a. Finally, the energy conversion device 240 disposed in contact with or in the vicinity of the first side surface 12 and the second side surface 12a receives the sunlight 280 that passes through the light guide plate 220, and in response to this, The light beam 280 can be converted into electric power.

Ninth embodiment:
  FIG. 6A is a schematic diagram of a focused solar light induction module according to a ninth embodiment. Please refer to FIG. 1B and FIG. 6A together in the following description.

The structure of the focused sunlight induction module 5000 is substantially the same as that of the focused sunlight induction module 1000. The difference between the focused sunlight guiding module 5000 and the focused sunlight guiding module 1000 is that the lens array plate 1100 and the light guiding plate 120 of the focused sunlight guiding module 1000 are integrated into one component in FIG. 6A. That is, it is what is called a lens light guide plate. Therefore, the focused sunlight guiding module 5000 includes a lens light guiding plate 320. The lens light guide plate 320 has a lens array 302 and a plurality of microstructures 330. The lens array 302 and the microstructure 330 are disposed on two different opposite surfaces of the lens light guide plate 320. In this embodiment, the lens array 302 is disposed on the upper surface 510 of the lens light guiding plate 320, the microstructure 330 is disposed on the lower surface 520 of the lens light guiding plate 320, and the upper surface 510 and the lower surface 520 face each other. Yes.

The lens array 302 has at least one lens 310. Each lens 310 has a curved surface 310a. The lens array 302 receives the sunlight rays 180 and focuses them. The microstructure 330 has a plurality of concave regions 332 and a plurality of connection regions 334 (see FIG. 6B, which is a partially enlarged view of the microstructure of FIG. 6A). The design of the concave region 332 and the connection region 334 is the same as the concave region 130 and the connection region 132 of the lower microstructure surface 120b shown in the first and fifth embodiments of the present disclosure. Therefore, it is not repeated here again.

In addition, the relative position between the concave region 332 and the focal point of the lens 310 can be the same as that shown in FIGS. 1C and 3C. Therefore, the sun rays 180 can be reflected and guided to one side or two different sides of the lens light guide plate 320.

Tenth embodiment:
  FIG. 7A is a schematic view of a focused solar light induction module according to the tenth embodiment. Please refer to FIG. 4B and FIG. 7A together in the following description.

  The structure of the focused sunlight guiding module 6000 is almost the same as the structure of the focused sunlight guiding module 3000. The difference between the focused sunlight guiding module 6000 and the focused sunlight guiding module 3000 is that the lens array plate 2200 and the light guiding plate 120 of the focused sunlight guiding module 3000 are integrated into one component, that is, a lens. This is what is called a light guide plate. Therefore, the focused sunlight guiding module 6000 includes a lens light guiding plate 420. The lens light guide plate 420 has a lens array 402 and a plurality of microstructures 430. The lens array 402 and the microstructure 430 are disposed on two different opposite surfaces of the lens light guide plate 420. In this embodiment, the microstructure 430 is disposed on the upper surface 710 of the lens light guiding plate 420, the lens array 402 is disposed on the lower surface 720 of the lens light guiding plate 420, and the upper surface 710 and the lower surface 720 face each other. Yes.

The lens array 402 has at least one lens 410. Each lens 410 has a curved surface 410a. The lens array 402 receives the sunlight 280 and focuses it. The curved surface 410a is covered with a reflective layer 281. Therefore, the sunlight 280 can be reflected by the reflective layer 281 and focused on the microstructure 430 of the lens light guide plate 420. The microstructure 430 has a plurality of concave regions 432 and a plurality of connection regions 434 (see FIG. 7B, which is a partially enlarged view of the microstructure of FIG. 7A). The design of the recessed area 432 and the connection area 434 is the same as the recessed area 230 and the connection area 232 of the upper microstructured surface 210a shown in the sixth and eighth embodiments of the present disclosure. Therefore, it is not repeated here again.

In addition, the relative position between the concave region 432 and the focal point of the lens 410 can be the same as that shown in FIGS. 4C and 5C. Thus, the sunbeam 280 can be reflected and guided to one side or two different sides of the lens light guide plate 420.

  In view of the above, in the focused solar light induction module according to any embodiment of the present disclosure, the lens of the focused solar light induction module is replaced with a lens having a sawtooth shape with a curved cross-sectional profile as illustrated in FIG. The intensity of the guided light can be increased. Instead, as shown in FIG. 2B, a condensing lens 160 is placed between the first side 12 of the light guide plate and the energy conversion device 140 ′, and the sun exiting from the first side 12 To narrow the light collection range further. Then, the occupation area of the energy conversion device 140 'can be further reduced. One skilled in the art will be able to design the details of the solar light induction module in light of any embodiment of the present disclosure. The above embodiments are not intended to limit the scope of the present disclosure.

Furthermore, Figure 8 A is a schematic diagram of FIG. 1D. The axial direction of the lenticular lens 110 is configured to be parallel to the east-west direction indicated as the direction EW in which the sun rises and sinks. Figure 8 B and FIG 8 C shows the result of simulation of a typical efficiency of photoinduced by Figure 8 A. The simulation parameters are as follows:
R (the radius of curvature of the lenticular lens) = 4.09 mm
n _l = 1.56
n _i = 1.00
n _c = 1.49
h = 10mm
W = 3.46mm
N × W = 210mm
θ ₁ = 40 °
θ ₂ = 20 °
d ₁ = 0.302 mm
d ₂ = 0.131 mm

  At noon, the sunlight 180 enters the focused solar induction module at a normal angle (i.e., an incident angle of 0 °), and the efficiency of simulating the optical induction of the focused solar induction module according to the present disclosure is approximately 60%.

  When the incident angle of the sunbeam 180 is between ± 30 degrees (ie, 10:00 am to 2:00 pm during the day), the standard efficiency of light guidance of the focused solar induction module according to the present disclosure is It can exceed 55%. Since the axial direction of the lenticular lens 110 is parallel to the east-west direction, the change in the incident angle caused by the sun rising and sinking during the day is unlikely to occur. Therefore, the focused solar light induction module according to the present embodiment can still achieve the relative efficiency of light induction exceeding 55% without being equipped with a system for tracking the sun after noon.

As shown in FIG. 8 C, the angle change due to seasonal focusing sunlight induced module of this embodiment can be a ± 1 ° at maximum. Therefore, if it is to reduce the sensitivity of the angular change to seasonal changes photoinduced module, in focusing sunlight induced module according to the present embodiment, as shown in FIG. 8 D, the lens array plate in north-south direction Can be moved (ie, the lens array plate is designed to be an array of movable lenses). Since the seasonal variation element changes the incident angle of the sunbeam 180, the lens array plate moves in the north-south direction, and the focused sunbeam 180 can also fall in the vicinity of the concave region 130 of the light guide plate 120. To achieve the light guiding effect of tracking the sun for each season.

In addition, the axial direction of the lenticular lens 110, as shown in FIG. 8 A, when configured so as to be parallel to the east-west direction is denoted by direction EW, the side surface of the light introducing plate 120 facing the east-west direction Covering with the reflective layer 121 (metal, total reflection multilayer, white reflector, etc.) solves the problem of light leakage from the surface.

  In view of the above, in the focused solar light induction module according to the present disclosure, the incident solar light is focused by the lens array plate, reflected by the fine structure on the surface of the light guide plate, and guided into the light guide plate. be able to. After passing through the side surface of the light guide plate, the sunlight is received by an energy conversion device disposed in contact with or near the side surface and converted into electric power. Thus, a focused solar induction module according to the present disclosure reduces the use of solar cells, reduces module costs, and maintains high efficiency of light induction without a solar tracking system.

According to the present disclosure as described above, a focused solar light induction module including a lens array plate and a light guide plate collects sunlight rays in a small area with the lens array plate, reflects the sunlight rays with a fine structure, and then The light is guided into the light guide plate by total internal reflection. In the case of the module provided by the present invention, it is necessary to arrange an energy conversion device by photoelectric conversion or thermoelectric conversion on the side surface of the light guide plate, and it is possible to convert sunlight rays passing through the side surface of the light guide plate into electric power. . If it does in this way, use of a solar cell and power generation cost can be reduced significantly.

Claims (26)

A focused solar light induction module that is applied to direct solar energy to an energy conversion device,
A lens array plate having at least one lens, each having an upper curved surface and a lower flat surface, for receiving and focusing the sunlight.
A light guide plate having an upper flat surface and a lower microstructure surface, the upper flat surface being parallel to the lower flat surface of the lens array plate, wherein the lower microstructure surface is at least one connection region and at least one A concave region, and the connection region is parallel to the upper flat surface of the light guide plate and connects between the concave regions adjacent to each other. A light guide plate having a first inclined plane and a second inclined plane that are respectively located on different sides and connect between the concave point and the connection region adjacent to the concave point, and
With
The sun rays are
After being focused by the lens array plate,
Reflected twice following the concave area and connection area of the lower microstructured surface of the light guide plate, guided into the light guide plate by total internal reflection,
Pass through at least one side of the light guide plate;
The focused sunlight induction module, wherein the energy conversion device disposed on or in the vicinity of the side surface receives the light and converts it into electric power.   The focal point of the sunlight passing through the lens is located at the first inclined plane, above the first inclined plane, or below the first inclined plane, and the first inclined plane is The focused solar light induction module according to claim 1, which is directed to the side surface.   The focused solar light induction module according to claim 1, wherein the focal point of the sunlight passing through the lens is located at the concave point, above the concave point, or below the concave point.   When a vertical line perpendicular to the connection area is formed from the concave point of the lower microstructure surface of the light guide plate, a first line between the first inclined plane and the vertical line to the connection area The focusing angle according to claim 1, characterized in that the depression angle and the second depression angle between the second inclined plane and the perpendicular to the connection region are each between 15 ° and 60 °. Solar induction module. When a vertical line perpendicular to the connection region is formed from the concave point of the lower microstructure surface of the light guide plate, with respect to the concave point, between the vertical line and the connection region adjacent to the vertical line. Are formed with a _first radial distance d ₁ and a second radial distance d ₂ , respectively, and when the length of the lower flat surface of each of the at least one lens is W, the focused sunlight The focused solar light induction module according to claim 1, wherein the induction module satisfies W ≧ 2 (d ₁ + d ₂ ).   When the lens array plate has N lenses each having a length of the lower flat surface W, and the thickness of the light guide plate is h, the focused solar light guide module is h ≧ W, The focused solar light induction module according to claim 1, wherein N × W ≦ 50 × h is satisfied.   The focused sunlight guiding module according to claim 1, wherein a refractive index of the lens of the lens array plate is smaller than a refractive index of the light guiding plate.   The apparatus further comprises an interface layer disposed between the lens array plate and the light guide plate and having a refractive index smaller than that of both the lens of the lens array plate and the light guide plate. Item 6. The focused solar light induction module according to item 1.   The focused sunlight guiding module according to claim 1, further comprising a condensing lens disposed between the side surface of the light guiding plate and the energy conversion device.   2. The focused solar light induction module according to claim 1, wherein the lens further includes a connection surface that connects two adjacent upper curved surfaces, each facing in a direction corresponding to the side surface.   The focused solar light induction module according to claim 1, wherein the axial direction of the lens is configured to be parallel to the east-west direction.   The focused sunlight guiding module according to claim 11, wherein the lens array plate is movable along a north-south direction.   The focused solar light induction module according to claim 11, wherein a reflection layer is further plated on the at least one side surface of the light guide plate facing the east-west direction. A focused solar light induction module that is applied to direct solar energy to an energy conversion device,
A light guide plate having an upper microstructured surface and a lower flat surface, the upper microstructured surface having at least one connection region and at least one recessed region, the connection region being a lower flat surface of the light guide plate The concave regions that are parallel to the surface and adjacent to each other are connected to each other, and the concave regions are located between the concave points and the connection regions that are located on different sides of the concave points and are adjacent to the concave points, respectively. A light guide plate having a first inclined plane and a second inclined plane that connect each other,
A lens array plate each having an upper flat surface and a lower curved surface, wherein the upper flat surface is parallel to the lower flat surface of the light guide plate;
With
The sun rays are
After passing through the light guide plate and being reflected by the downward curved surface,
Reflected twice following the concave area and connection area of the upper microstructured surface of the light guide plate, guided into the light guide plate by total internal reflection,
Pass through at least one side of the light guide plate;
The focused sunlight induction module, wherein the energy conversion device disposed on or in the vicinity of the side surface receives the light and converts it into electric power.   The focal point of the sunlight reflected and focused by the lens is located at the first inclined plane, above the first inclined plane, or below the first inclined plane, and the first inclined plane. The concentrating solar light induction module according to claim 14, characterized by facing toward the side surface.   The focused solar light induction module according to claim 14, wherein a focal point of the solar ray reflected and focused by the lens is located at the concave point, above the concave point, or below the concave point. .   When a vertical line perpendicular to the connection region is formed from the concave point of the upper microstructure surface of the light guide plate, a first line between the first inclined plane and the vertical line to the connection region is formed. The focusing angle according to claim 14, characterized in that the depression angle and the second depression angle between the second inclined plane and the perpendicular to the connection area are each between 15 ° and 60 °. Solar induction module. When a vertical line perpendicular to the connection region is formed from the concave point on the upper microstructured surface of the light guide plate, the vertical line and the connection region adjacent to the vertical line are related to the concave point. Are formed with a _first radial distance d ₁ and a second radial distance d ₂ , respectively, and when the length of the upper flat surface of each of the at least one lens is W, the focused sunlight The focused solar light induction module according to claim 14, wherein the induction module satisfies W ≧ 2 (d ₁ + d ₂ ).   When the lens array plate has N lenses whose length of the upper flat surface is W ′, and the thickness of the light guide plate is h ′, the focused solar light guide module is h ′. The focused solar light induction module according to claim 14, wherein ≧ W ′ and N × W ′ ≦ 50 × h ′ are satisfied.   The focused solar light induction module according to claim 14, wherein the lower curved surface of the lens is covered with a reflective layer.   The focused sunlight guiding module according to claim 14, wherein a refractive index of the lens of the lens array plate is smaller than a refractive index of the light guiding plate.   The apparatus further comprises an interface layer disposed between the light guide plate and the lens array plate and having a refractive index smaller than that of both the light guide plate and the lens of the lens array plate. Item 15. The focused solar light induction module according to Item 14.   The focused solar light induction module according to claim 14, further comprising a condensing lens disposed between the side surface of the light guide plate and the energy conversion device.   The focused sunlight induction module according to claim 14, wherein an axial direction of the lens is configured to be parallel to an east-west direction.   The focused sunlight guiding module according to claim 24, wherein the lens array plate is movable along a north-south direction.   25. The focused sunlight guiding module according to claim 24, wherein a reflection layer is further plated on the at least one side surface of the light guiding plate facing the east-west direction.

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